Flaming-machine



(No Model.) 2 Sheets-Sheet 1. G. D. EDDY. PLANING MACHINE.

Patented Mar, 10, 1896.

AN DREW B.GRAHA\M. PHOTO-LITHOWASNIN FI'OILDYC.

2 Sheets-Sheet .2.

(No Model.)

G.D.EDDY. PLANING MACHINE.

No. 556,091. Patented Mar. 10, 1 896.

UNITED STATES PATENT OFFICE.

GEORGE D. EDDY, OF BROOKLYN, NEW YORK.

PLANlNG-MACHINE SPECIFICATION forming part of Letters Patent No.556,091, dated March 10, 1896.

Application filed June 4, 1895. Serial No. 551,611. (No model.)

To all whom it may concern.-

Be it known that I, GEORGE D. EDDY, of Brooklyn, in the county of Kingsand State of New York, have invented a new and useful Improvement inPlaning-Machines, of which the following is a specification.

My invention relates to an improvement in planingmachines which areprovided with cutters for tonguing and grooving the boards as they arefed along the table in engagement with the surfacing-cutters.

My invention more particularly contemplates a structure which will admitof tonguing and grooving a plurality of narrow boards as they are passedsimultaneously beneath the surfacing-knives, thereby utilizing a greaterextent of surfacing-cutter and materially i11- creasing the output of agiven machine within a given length of time.

A practical embodiment of my invention is represented in theaccompanying drawings, in which Figure 1 is a view in verticallongitudinal section of so much of a planing-machine as is essential tothe presentation of my present invention. Fig. 2 is a top plan View ofthe same. Fig. 3 is a Vertical transverse section on line so of Fig. 2.Fig. 4 is a vertical transverse section on line y y of Fig. 2; and Figs.5, 6, and 7 represent the cutting positions, respectively, of the topcutter, the side cutter, and the bottom cutter for forming the tongueand groove on the board.

The bed-frame of the machine is represented by A. It is provided withlower feedrolls, B B B and upper feed-rolls, Z) Z) Z2 of any well knownor approved structure and arrangement for feeding the boards along thetable into engagement with the several cutters.

The surfacing-cutter head is denoted by O and is provided with theordinary or any suitable surfacing-cutters c c fixed thereto andextending across the table in position to plane the surface of boards ofvarying widths within the capacity of the machine. The cutterhead 0 isdriven by means of band-pulleys c c from a suitable source of power.(Not shown.) In a similar manner the cutter-head D for planing the underside of the board is provided with surfacing-knives cl (1 and is drivenby means of pulleys d d from a suitable source of power. (Not shown.)

Upon the opposite sides of the machine, in the present instanceintermediate of the upper and lower surfacing-cutters,vertical spindlesE and E are mounted, carrying cutterheads 6 6 provided with cutters e efor forming the grooves in the edges of the boards for receiving thetongue of an adjacent board when put in use, as is common in matchedlumber. The spindles E E are provided with band-pulleys e a by whichthey are driven from a suitable source of power. (Not shown.)

The cutter-head O is further provided with two sets of tongue-formingcutters which are secured to the head so as to be adjustedlongitudinally of the head into different positions to suit thedifferent widths of boards to be, for the time being, operated upon. Themembers of one of these sets of cutters are denoted by F F and the otherset byff. They are set with their cutting-edges in advance of thecutting-edge of the surfacing-cutters and are so shaped as to cut theshoulder at the base of the tongue and about one-half of the tongueitself, as clearly indicated in Fig. 5. That portion of the edge of thecutter which cuts the deepest and which is denoted in Fig. 5 by f isextended a considerable distance so as to reduce the edge of the boardwhere the tongue is about to be formed, whatever be the width of theboard, within reasonable limits. This is important where boards areliable to vary somewhat in width and yet are classified under a certainwidth and also where there is a variation in the width of a given board.The board represented in Fig. 5 in cross-section is denoted by H and thecutter operating upon it is denoted by f.

In like manner two sets of cuttersthe members of one set being denotedby G G andthe members of the other set by g gare secured to thecutter-head D in such a manner as to be adjusted longitudinally of thecutterhead to accommodate themselves to different widths of boards, andtheir cutting-edges are so formed as to cut the lower shoulder adjacentto the tongue and'also a little more than one-half of the tongue, so asto completely cut away any portion of the edge of the board which mayhave been left projecting from the tongue after the upper set of cuttershave operated upon it. The position of the lower cutter with respect tothe tongue is clearly shown in Fig. 7, where the cutter is representedby 7, its farthest projecting edge by g and the board by H.

The position of the groove-cutter with respect to the board is shower inFig. 6, where the cutter is denoted by e and the board, as before, byII. This figure also shows the condition in which the partially-cuttongue of the board is left after the upper cutter has acted upon it.

For the purposes of holding diiterent boards of varying thicknesses orof the same thickness snugly down to the table as they approach thesurfacing upper tongue-cutting cutters I provide independent flatspringplates, (denoted respectively by I I,) which are secured toaweighted or spring-presscd bar K with their free ends 1' in position toyieldingly rest upon the boards and thereby adjust themselvesindependently of one another to the varyin g thickness, when such shalloccur.

For holding the boards snugly against the side guards at a a o as theypass into engagement with the groove-cutters at the edge I provideguide-feet L L, having stems Z Z, which extend upwardly through anelongated slot m in a cross-bar M fixed to the sides of the table orbed-frame A. The stems ll are screw-threaded and provided with clamiiingnuts Z 1 for the purpose of locking the guidefeet L L to the bar Min different adjustments transversely of the machine to suit thepositions of the tongues of different widths of boards. The bar M ismade vertically adjustable as a whole by means of screws m m whichextend through its ends into engagement with sockets m m in the sides ofthe frame, nuts on m being provided on the screws m m underneath the barM. It is intended that the guide'feet L L shall abut against theshoulder at the upper side of the tongue and travel along on the upperside of the tongue of the board, so that their position will not berequired to vary with the varying width of the board, but may at alltimes be made to conform exactly to the position of the uppertongue-cutter with respect to the grooved edge of the board.

A top guide N of any well-known or approved form is provided for holdingthe boards in engagement with the lower surfacing and tongue cutters.

In operation two boards may be simultaneously fed to the cutters withtheir edges to be grooved in contact with the guides at a, and as theypass into engagement with the surfacing and upper tongue cutters theywill be thereby forced snugly into contact with the guides at the sideedges until they reach the guide-feet L L, when they will be securelyheld in contact with the side guides while grooves are being cut intheir edges, and as they pass along over the under surfacingand tonguecutters the cutting of the tongues will be completed. The machine isthus made to simultaneously operate upon a plurality of boards at thesame time, and if need be the boards upon one side may be of dillierentwidth from those upon the other, so that two orders for different widthsof stuff can be simultaneously executed.

hat I claim is- The combination with the permanent side guides at theopposite sides of the machinebed, side cutters in position to engage theedges of boards held against the side guides, upper tongue-cuttersmounted in independent adjustment laterally of the machine and undertongue-cutters in independent adj ustment laterally of the machine andin a different vertical transverse plane from that in which the uppertongue-cutters are located, of guide-feet adapted to engage theshoulders at the bases of the partial tongues cut by the upper cuttersand located intermediate of the vertical planes of the upper and lowerton guecutters, a vertically-adjustable bar forming a support for thesaid guide-feet and means for adjusting the said guide-feetlongitudinally of said bar and hence laterally oi the machine,substantially as set forth.

GEOR it] I). EDDY. \Vitn esses FREDK. HAYNES, IRENE B. DEcKEn.

